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Mower Maintenance
To ensure a superior quality of cut, keep the blade
sharp. For convenient sharpening and replacement,
you may want to keep extra blades on hand.
Blade Safety
A worn or damaged blade can break, and a piece
of the blade could be thrown at you or bystanders,
resulting in serious personal injury or death. Trying to
repair a damaged blade may result in discontinued
safety certification of the product.
•
Inspect the blade periodically for wear or damage.
•
Use care when checking the blade. Wrap the
blade or wear gloves, and use caution when
servicing the blade. Only replace or sharpen the
blade; never straighten or weld them.
Before Inspecting or
Servicing the Blade
1.
Park the machine on a level surface, disengage
the blade, and engage the parking brake.
2.
Turn the ignition key to the O
the key, and disconnect the spark plug wires
from the spark plugs.
3.
Tilt the machine so that the deck is off the
ground and place wood blocks under the deck
to hold it up.
Inspecting the Blade
Service Interval: Before each use or daily
1.
Inspect the cutting edges
2.
If the edges are not sharp or have nicks, remove
and sharpen the blade; refer to
Blade (page
27).
3.
Inspect the blade.
4.
If you notice any crack or wear, immediately
install a new blade
Figure 34
1. Cutting edge
2. Wear
position, remove
FF
(Figure
34).
Sharpening the
(Figure
34).
3. Crack
Checking for a Bent Blade
Straight Blade Only
WARNING
A blade that is bent or damaged could break
apart and could seriously injure or kill you or
bystanders.
• Always replace a bent or damaged blade
with a new blade.
• Do not file or create sharp notches in the
edges or surfaces of the blade.
1.
Rotate the blade until the ends face forward and
backward.
2.
From a level surface, measure the distance
to the cutting edge at position A of the blade
(Figure
35).
1. Position A
3.
Rotate the blade 180°.
4.
From a level surface, measure the distance
to the cutting edge of the blade at the same
position as in step 2.
Note:
The difference between the dimensions
obtained in steps
mm (1/8 inch).
Note:
If this dimension exceeds 3 mm (1/8
inch), the blade is bent and must be replaced.
g248312
26
Figure 35
2. Measure here from blade
to hard surface.
2
and
4
must not exceed 3
g189024
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